Fans who had been watching “Running Man” were concerned because she was wearing a mask on the show. Seohyun explains via Instagram, “Because there were a lot of people who were worried after the broadcast yesterday ㅜㅜ. I hurt my face a bit while filming so I was wearing a mask~ It’s all better now, so don’t worry~!^^ Sorry for making you worry~ <3 Have a good day <3”